Browser Fingerprint Analyzer
See how uniquely trackable your browser is — even without cookies. This test collects the same signals that trackers use and estimates how identifiable you are.
Frequently Asked Questions
What is browser fingerprinting?
Browser fingerprinting is a tracking technique that identifies you by collecting unique characteristics of your browser and device — like your screen resolution, installed fonts, and graphics card — to create a digital "fingerprint." Unlike cookies, you can't easily delete or block it.
How is this different from cookies?
Cookies are files stored on your device that you can delete. A fingerprint is calculated from your browser's characteristics — deleting cookies doesn't change it. You'd need to change your browser, device, or use tools that randomize these signals.
Can I prevent browser fingerprinting?
You can reduce it by using privacy-focused browsers like Tor or Brave (which randomize fingerprint data), disabling JavaScript on untrusted sites, using anti-fingerprinting browser extensions, and keeping your browser updated with default settings.
Is this test safe?
Yes. This test runs 100% client-side in your browser using JavaScript. No data is collected, sent to a server, or stored anywhere. You can verify this by viewing the page source code.
What does my uniqueness score mean?
A high uniqueness score means your combination of browser signals is rare — making you easier to track across websites. A lower score means your configuration is more common and you blend in with more users.
Who uses browser fingerprinting?
Advertising networks, analytics companies, and some websites use fingerprinting to track users across sessions and sites. It's also used for fraud detection and bot prevention by banks and e-commerce platforms.